[linux-2.6-block.git] / drivers / rtc / nvmem.c

// SPDX-License-Identifier: GPL-2.0
/*
 * RTC subsystem, nvmem interface
 *
 * Copyright (C) 2017 Alexandre Belloni
 */

#include <linux/err.h>
#include <linux/types.h>
#include <linux/nvmem-consumer.h>
#include <linux/rtc.h>

int devm_rtc_nvmem_register(struct rtc_device *rtc,
		       struct nvmem_config *nvmem_config)
{
	struct device *dev = rtc->dev.parent;
	struct nvmem_device *nvmem;

	if (!nvmem_config)
		return -ENODEV;

	nvmem_config->dev = dev;
	nvmem_config->owner = rtc->owner;
	nvmem_config->add_legacy_fixed_of_cells = true;
	nvmem = devm_nvmem_register(dev, nvmem_config);
	if (IS_ERR(nvmem))
		dev_err(dev, "failed to register nvmem device for RTC\n");

	return PTR_ERR_OR_ZERO(nvmem);
}
EXPORT_SYMBOL_GPL(devm_rtc_nvmem_register);
Commit	Line	Data
cdf7545a	1	// SPDX-License-Identifier: GPL-2.0
697e5a47 AB	2	/*
	3	* RTC subsystem, nvmem interface
	4	*
	5	* Copyright (C) 2017 Alexandre Belloni
697e5a47 AB	6	*/
	7
	8	#include <linux/err.h>
	9	#include <linux/types.h>
	10	#include <linux/nvmem-consumer.h>
	11	#include <linux/rtc.h>
697e5a47	12
3a905c2d	13	int devm_rtc_nvmem_register(struct rtc_device *rtc,
2cc82121	14	struct nvmem_config *nvmem_config)
697e5a47	15	{
6746bc09	16	struct device *dev = rtc->dev.parent;
41c9e132	17	struct nvmem_device *nvmem;
ab3ea36e	18
4cce9d39	19	if (!nvmem_config)
2cc82121	20	return -ENODEV;
697e5a47	21
6746bc09	22	nvmem_config->dev = dev;
4cce9d39	23	nvmem_config->owner = rtc->owner;
2cc3b37f	24	nvmem_config->add_legacy_fixed_of_cells = true;
6746bc09 BG	25	nvmem = devm_nvmem_register(dev, nvmem_config);
	26	if (IS_ERR(nvmem))
	27	dev_err(dev, "failed to register nvmem device for RTC\n");
2cc82121	28
25ece305	29	return PTR_ERR_OR_ZERO(nvmem);
697e5a47	30	}
3a905c2d	31	EXPORT_SYMBOL_GPL(devm_rtc_nvmem_register);